如何在选择框中获取所有选项值(选中/未选中)

 <option value="option1">选项1</option>
 <option value="option2">选项2</option>
 <option value="option3">选项3</option>
</select>

const select = document.getElementById('mySelect');
const options = select.options;

for (let i = 0; i< options.length; i++) {
  console.log(options[i].value);
}

from bs4 import BeautifulSoup

html = '''<select id="mySelect">
 <option value="option1">选项1</option>
 <option value="option2">选项2</option>
 <option value="option3">选项3</option>
</select>
'''

soup = BeautifulSoup(html, 'html.parser')
select = soup.find('select', {'id': 'mySelect'})
options = select.find_all('option')

for option in options:
    print(option['value'])